Clallam Bay/Sekiu Sewer System

The Sekiu Wastewater Treatment Plant (WWTP) and the Clallam Bay WWTP both began operation in 1977. The Sekiu and Clallam Bay WWTPs are similar in design and both use rotating
biological contactors (RBCs) for biological treatment. The chlorine disinfection system was replaced with an ultraviolet
disinfection system at both WWTPs in 2004. Treated wastewater is discharged by outfalls to the bay.

Sewer Permits, Connection & Rates

Clallam Bay/Sekiu Sewerage System provides service to residential, commercial and public customers. New customers wanting to install new or additional connections to the sewer must provide a sewer plan for review to Public Works and obtain a sewer permit prior to installation. Current connection and usage rates can be found in Chapter 13.04 of the Clallam County Code.

Clallam Bay/Sekiu Sewer Advisory Committee

This volunteer committee providea vital input to the County regarding rates, planning and other important sewer utility functions. Meetings are open to the public, and take place every second Wednesday of the month at 3 pm at the Clallam Bay Fire Station. Meeting minutes and agendas are posted below.

General Sewer/Wastewater Facilities Plan Update

In April 2018, Clallam County Public Works contracted with Gray&Osborne, Inc. to author a General Sewer and Wastewater Facilities Plan (Plan) for the Clallam Bay/Sekiu Sewerage System to address the County’s planning needs for wastewater collection,
transmission, treatment, and disposal for the 20-year planning period. The final draft has been submitted to the Department of Ecology for review: